Assessing Waste Material in Road Surfacings

Governments, transport agencies, and industry have identified the need to reduce waste going to landfill and increase the use of recycled materials to achieve more sustainable development and improve outcomes for communities. The latest update to the Guide to Pavement Technology Part 4E: Recycled Materials covers the advancement in material re-use that has occurred in the 13 years since the 2009 version of the guide was published.

There is wide concern around the misuse of recycled materials in road construction, and it is generally agreed that roads should not be viewed as alternative avenues for waste disposal. A protocol has been established that follows a step-by-step process for quantifying the effect of using novel, post-consumer and industrial wastes or recycled materials in asphalt pavements and sprayed seal surfacings.

This webinar covers the following key updates made to the Austroads Guide to Pavement Technology Part 4E: Recycled Materials:

• Latest and emerging recycled materials utilised within pavements and information on their use in specific applications as well as associated issues, risks, and considerations.
• The developed holistic assessment framework for the use of recycled materials in road pavements.
• The developed protocol for asphalt and sprayed seals that establishes a step-by-step process for quantifying the effect of using novel, post-consumer and industrial wastes or recycled materials.

The webinar is presented by Phil Herrington from WSP New Zealand, Brody Clark from WSP Australia with participation of Grant Bosma from Waka Kotahi NZ Transport Agency and Mike Pickering from the Queensland Department of Transport and Main Roads.